HIGH EFFICIENCY BOILERS FOR HEATING OR PROCESS APPLICATIONSSizes Range From 25 BHP-500 BHP (1050 MBH-21,000 MBH lnput)

• PRECISION FTS Series are “Flex-Tube” forced draft steam boilers noted for their small footprint and high fuel-to-output efficiency, exceeding 82 to 85% for gas, up to 86% for oil.

• PRECISION FTS Series Boiler Heat Exchangers utilize 1 1/2” tubes. The serpentine tube configuration is designed to absorb thermal shock and can be to full steaming capacity in less than 10 minutes. The pressure vessel is warranted against thermal shock for 25 years.

• PRECISION FTS-1 thru 3 Series Boilers utilize a unique 5-pass tube design with upper and lower headers located on the left or right side. The serpentine bends insure an even flow of gases through the heat transfer area of the boiler as well as equal water flow. The serpentine bends also create tangent water walls on all but one side of the combustion chamber. An upper plenum plate diverts the flue gases to the burner end to facilitate flue gas recirculation.

• PRECISION FTS-4 thru 6 Series Boilers the furnace is fully water cooled on all four sides.

GENERAL

• Wide Choices of Burners• Left Hand or Right Hand Tube Configuration• Field Erectable• Stack Thermometer/Temperature Sensor• Day-Night setback Controls• Audible Alarm & Silencing Switch• Lead-Lag Sequencing Systems• Annunciators & Communication lnterfaces• Linkage-less Burner Control Systems• Higher design pressures• Oxygen Trim Control Package• Low NOx Burner (<30ppm / < 10ppm)• High Altitude Design (to 12.000 ft.)• FM IRI, CSD-1. NFPA-8501, SCAQMD• Main Electrical Disconnect Switch• High Flue Temperature Cutoff/Alarm• TEFC & High Efficiency Motors• Many more options to meet specific requirements• HTD - High Turn Down Burners

FTS OPTIONAL EQUIPMENT

PRECISIONBOILERS

FTS, FLEXTUBE GAS/OIL FIRED STEAM BOILERS

FTS STANDARD FEATURES • Flex-Tube design with mechanical or welded tube attachments• Electronic Combustion Control with Off-On, Low-High off, Low-High-Low, or Modulating Firing• Inspection Opening in lower drum for easy access and cleaning• Power Flame forced draft burners (AS Standard)• Totally encased rear downcomer

FTS STANDARD BOILER TRIMSteam Boilers(standard boiler design pressures 15 and 150 Psig) • Operating pressure control • High pressure safety (Auto and Manual reset) • Pressure gauge • Water sight gauge • Combination probe-type level control LWCO • Aux probe-type LWCO • ASME safety valves • Bottom blowdown valves • Feedwater stop/check valves• Surface blowoff provision

Overall length is approximate and is dependent on length of actual burner used. F Indicates Flanged Connection.#Suffi x Model Number by desired max operating pressure and burner designation (eg, FTS-1-50-150-PF-P = 50 BHP / 150 design / Power Flame burner / Propane)

FTS 1, 2 & 3 SERIES PHYSICAL DATA

PRECISIONBOILERS

FTS, FLEXTUBE GAS/OIL FIRED STEAM BOILERS

STANDARD DESIGN PRESSURES: 15 PSIG BOILER MODEL # FTS-1-25 FTS-1-50 FTS-2-75 FTS-2-100 FTS-3-125 FTS-3-150 FTS-3-175 FTS-3-200BOILER NOMINAL HP 25 50 75 100 125 150 175 200INPUT MBH (APPROX) MBH 1,050 2,100 3,150 4,200 5,250 6,300 7,350 8,400 OUTPUT PPH PPH 863 1,725 2,588 3,451 4,314 5,176 6,039 6,902 A CASING LENGTH IN. 64 90 91 115 115 140 165.5 190.5 B OVERALL LENGTH IN. 95 122 127 151 154 180 206 232 C CASING HEIGHT IN. 95 95 105 105 111 111 111 111 D CASING WIDTH IN. 41 41 55 55 60 60 60 60 E FLUE GAS OUTLET DIAMETER IN. 8 10 12 14 16 16 18 18 F FLUE GAS OUTLET LOCATION IN. 15 15 17 17 19 19 19 19 G FLUE GAS OUTLET LOCATION IN. 12 12 18 18 20 20 20 20 H STEAM OUTLET NPT 2-1/2 4F 4F 6F 8F 8F 8F 8F I FEEDWATER NPT 3/4 3/4 1 1 1 1 1-1/4 1-1/4 J BLOWDOWN NPT 1 1-1/4 1-1/2 1-1/2 1-1/2 1-1/2 2 2 K STEAM OUTLET LOCATION IN. 4.5 5.5 5.5 6.5 7.5 7.5 7.5 7.5

STANDARD DESIGN PRESSURES: 150 PSIG BOILER MODEL # FTS-1-25 FTS-1-50 FTS-2-75 FTS-2-100 FTS-3-125 FTS-3-150 FTS-3-175 FTS-3-200BOILER NOMINAL HP 25 50 75 100 125 150 175 200INPUT MBH (APPROX) MBH 1,050 2,100 3,150 4,200 5,250 6,300 7,350 8,400 OUTPUT PPH PPH 863 1,725 2,588 3,451 4,314 5,176 6,039 6,902 A CASING LENGTH IN. 64 90 91 115 115 140 165.5 190.5 B OVERALL LENGTH IN. 95 122 127 151 154 180 206 232 C CASING HEIGHT IN. 95 95 105 105 111 111 111 111 D CASING WIDTH IN. 41 41 55 55 60 60 60 60 E FLUE GAS OUTLET DIAMETER IN. 8 10 12 14 16 16 18 18 F FLUE GAS OUTLET LOCATION IN. 15 15 17 17 19 19 19 19 G FLUE GAS OUTLET LOCATION IN. 12 12 18 18 20 20 20 20 H STEAM OUTLET NPT 1-1/4 2 2 3F 4F 4F 4F 4F I FEEDWATER NPT 3/4 3/4 1 1 1 1 1-1/4 1-1/4 J BLOWDOWN NPT 1 1 1 1 1 1 1-1/4 1-1/4 K STEAM OUTLET LOCATION IN. 4.5 4.5 4.5 4.5 5.5 5.5 6 6

FTS 4, 5 & 6 SERIES PHYSICAL DATA

Overall length is approximate and is dependent on length of actual burner used. F Indicates Flanged Connection.#Suffi x Model Number by desired max operating pressure and burner designation (eg, FTS-1-50-150-PF-P = 50 BHP / 150 design / Power Flame burner / Propane)

PRECISIONBOILERS

FTS, FLEXTUBE GAS/OIL FIRED STEAM BOILERS

STANDARD DESIGN PRESSURES: 15 PSIG BOILER MODEL # FTS-4-50 FTS-4-100 FTS-5-150 FTS-5-200 FTS-5-250 FTS-5-300 FTS-6-350 FTS-6-400 FTS-6-450 FTS-6-500BOILER NOMINAL HP 50 100 150 200 250 300 350 400 450 500INPUT MBH (APPROX) MBH 2,100 4,200 6,300 8,400 10,500 12,600 14,700 16,800 18,900 21,000 OUTPUT PPH PPH 1,725 3,451 5,176 6,902 8,627 10,353 12,078 13,804 15,529 17,255 A CASING LENGTH IN. 65 90 119 144 169.5 194.5 194.5 219.5 245 270 B OVERALL LENGTH IN. 97 126 159 186 210 235 237 262 294 319 C CASING HEIGHT IN. 87 87 103 103 103 103 125 125 125 125 D CASING WIDTH IN. 56 56 68 68 68 68 79 79 79 79 E FLUE GAS OUTLET DIAMETER IN. 10 14 16 18 20 20 24 24 28 28 F FLUE GAS OUTLET LOCATION IN. 17 17 21 21 21 21 29 29 29 29 H STEAM OUTLET NPT 4F 6F 8F 8F 8F 8F 10F 10F 10F 12F I FEEDWATER NPT 1 1 1-1/4 1-1/4 1-1/4 1-1/4 1-1/2 1-1/2 1-1/2 1-1/2 J BLOWDOWN NPT 1-1/4 1-1/2 2 2 2 2 2 2 2 2 K STEAM OUTLET LOCATION IN. 6.5 8 8.5 8.5 9 9 11 11 11.5 11.5

STANDARD DESIGN PRESSURES: 150 PSIG BOILER MODEL # FTS-4-50 FTS-4-100 FTS-5-150 FTS-5-200 FTS-5-250 FTS-5-300 FTS-6-350 FTS-6-400 FTS-6-450 FTS-6-500BOILER NOMINAL HP 50 100 150 200 250 300 350 400 450 500INPUT MBH (APPROX) MBH 2,100 4,200 6,300 8,400 10,500 12,600 14,700 16,800 18,900 21,000 OUTPUT PPH PPH 1,725 3,451 5,176 6,902 8,627 10,353 12,078 13,804 15,529 17,255 A CASING LENGTH IN. 65 90 119 144 169.5 194.5 194.5 219.5 245 270 B OVERALL LENGTH IN. 97 126 159 186 210 235 237 262 294 319 C CASING HEIGHT IN. 87 87 103 103 103 103 125 125 125 125 D CASING WIDTH IN. 56 56 68 68 68 68 79 79 79 79 E FLUE GAS OUTLET DIAMETER IN. 10 14 16 18 20 20 24 24 28 28 F FLUE GAS OUTLET LOCATION IN. 17 17 21 21 21 21 29 29 29 29 H STEAM OUTLET NPT 2 3F 3F 4F 4F 4F 6F 6F 6F 6F I FEEDWATER NPT 1 1 1-1/4 1-1/4 1-1/4 1-1/4 1-1/2 1-1/2 1-1/2 1-1/2 J BLOWDOWN NPT 1-1/4 1-1/4 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 K STEAM OUTLET LOCATION IN. 4.5 5.5 6.5 6.5 7 7 8 8 8.5 8.5

MODEL NOSUFFIX*

-PFX700#-PFJ15A-10-PFJ30A-10-PFJ30A-12-PFJ50A-15-PFC2G-20B-PFC3G-20-PFC3G-25

-PFC3G-25B-PFC4G-25-PFC4G-30-PFC5G-30

MAX INPUTMBTU

400630

1,0501,2602,1003,0203,5304,6205,0405,2507,3508,400

MAXBHP

9.5152530507284110120125175200

MAX OUTPUT MBTU**

330520860103017202480289037904130431060306890

GAS

3/411

1-1/41-1/2

22

2-1/22-1/22-1/2

33

FLUE

66810101212141416

16/1818

BLOWER HP

1/41/41/31/31/31

1-1/21-1/2

335

7-1/2

MIN GAS PRESS (IN. WC)

5.04.07.37.49.04.85.97.05.38.012.119.9

BURNER STICK-OUT

20”22”22”22”26”35”40”40”40”44”44”44”

SHIP WT(APPROX) LBS

50130140145205280360365380425455455

BURNER DATACONNECTION SIZES (IN.)

MODEL NOSUFFIX*

-BSMG-BCF800-PFC1O

-PFC2OA-PFC2OB-PFC3O

-PFC3OB-PFC4OA-PFC4OB-PFC50

MAX INPUTMBTU

420840

1,2602,1003,0204,6205,0405,2507,3508,400

MAXBHP

1020305072110120125175200

MAX OUTPUT MBTU**

34069010301720248037904130431060306890

OIL***

3/83/83/83/83/81/21/21/25/85/8

FLUE

66/88/101012141416

16/1818

BLOWER HP

1/41/31/23/4

1-1/22355

7-1/2

#2 OILGPH

3.06.09.015.021.633.135.737.552.560

BURNER STICK-OUT

12”12”30”35”35”40”40”44”44”44”

SHIP WT(APPROX) LBS

5055210230240265270330390425

CONNECTION SIZES (IN.)

# This Power Flame burner uses the S8680J Combustion Control

MODEL NOSUFFIX*

-PFC1GO-10-PFC1GO-12-PFC2GO-15

-PFC2GO-20A-PFC2GO-20B-PFC3GO-20-PFC3GO-25

-PFC3GO-25B-PFC4GO-25-PFC4GO-30-PFC5GO-30

MAX INPUTRANGE

8401,2602,1002,5203,0203,5304,6205,0405,2507,3508,400

MAXBHP

203050607284110120125175200

MAX OUTPUT MBTU**

6901030172020702480289037904130431060306890

GAS

11-1/41-1/4

222

2-1/22-1/22-1/2

33

FLUE

6/88/1010121212141416

16/1818

BLOWER HP

1/31/23/41122355

7-1/2

MIN GAS PRESS (IN. WC)

5.65.35.24.84.85.97.05.38.012.119.9

BURNER STICK-OUT

30”30”35”35”35”40”40”40”44”44”44”

SHIP WT(APPROX) LBS

240240260290290370380390440510520

CONNECTION SIZES (IN.)

* Prefi x of model number indicates burner supplier (PF=Power Flame, B=Beckett ); Suffi x model number with N=Natural Gas; P=Propane; L=#2 Fuel Oil; C=Combination (N+L)** Max output is based on 82% effi ciency. *** Minimum recommended tubing size based on 100 of length and 10” max suction at burner pump

BURNER OPTIONSAs with all forced-draft boilers, the burner is the heart of the unit. PRECISION has chosen as its standard, the “Power Flame” burner for the majority of applications, and the “Beckett” burner as the economical choice for the low end oil burner, with other burners available as options. The Power Flame burner is one of the industrys leading burners and is well suited for this application. The FTS Series large combustion chamber and optimally sized heat release area have been carefully matched to the burner size to assure 82 - 85% efficiency on gas, 86% on oil. The proven Honeywell combustion control system is provided as standard for gas burners, and is supplied for oil burners, with other systems available as options.

CONTROL OPTIONSOff-On control is standard and is quite sufficient for boilers up to 30 BHP. However, boilers rated 35-50 BHP will have better operation with low-highlow burner controls, and boilers greater than 60 BHP are best suited with a 3:1 turndown modulating control system. Note: 5:1 Higher Turndown is optional. Precision now offers a low NOx option to meet sub-30ppm NOx regulations. This option uses the Power Flame induced flue gas recirculation system in a fully UL Listed package. Also available are configurations for sub-10ppm NOx applications.

PRECISIONBOILERS

FTS, FLEXTUBE GAS/OIL FIRED STEAM BOILERS

5. Boiler Controls.Boiler shall be provided with the applicable trim and controls as required by ASME: As a minimum, the following shall be provided: Steam Boiler: operating pressure control, high

pressure safeties, pressure gauge, water sight gauge, combination probe-type level control/LWCO, Aux probe-type LWCO, ASME Safety valve(s), bottom blowdown valve(s), feedwater stop/check valves, surface blow-off provision.

6. PackagingThe boiler shall be completely factory assembled and mounted on a structural steel support frame. Lifting lugs are to be an integral part of the support frame to facilitate lifting and rigging. All specified components will be factory mounted, piped, and wired. Boiler shall be insulated with durable ceramic fiber, and fiberglass insulating materials such that the outside surface tem-perature will not exceed 130°F during continuous operation at maximum firing rate. The boiler is to be housed in a rectangular outer casing of steel and coat-ed with a durable enamel finish.

7. Quality ControlComplete packaged boiler shall be manufactured by Precision Boilers in strict accordance with ASME Boiler and Pressure Vessel Code in an ISO quality system.

1. GeneralFurnish and install as shown on the plans one (1) Precision model FTS-forced-draft, (natural gas)(propane)(oil)(gas/oil)-fired, flextube water. Boiler rated at ___boiler horsepower. Boiler shall be Designed for a maximum allowable working pressure of ___psi and shall operate at ___psi. Boiler shall be completely factory assembled and tested, with controls and trim as specified below. Complete package shall be UL Listed, shall carry the Underwriters Laboratories Listing Mark, and shall also be fully ASME compliant. Boiler shall be designed for___V___Ph. and-HZ electrical supply with single point power connection.

2. Pressure Vessel AssemblyAssembly shall be constructed and stamped in accordance with ASME Section IV (15 psi) Section I (150 psi) for steam boilers and shall be registered with the National Board. Drums and tubes shall be fabricated from carbon steel. Tubes shall be 1 1/2” OD and equipped with inspection openings as required by the ASME Code.

3. Combustion ChamberCombustion chamber shall be tangent water wall on all sides. Combustion chamber rear wall shall be of high temperature refractory, not less than 3” thick.

4. BurnerProvide forced-draft burner to burn (natural gas)(oil)(gas/oil)(propane) with (off-on)(low-high-low)(full modulation) firing rate control. Burner shall be equipped to fire at a maximum input of _____ Btu/hr at an elevation of _____ ft. Blower motor shall be 3450 rpm designs with motor starter (units over 3/4 hp). Burner controls shall conform to UL795 (CSD-1) (FM) (IRI) requirements. For electrical supplies other than 120V, the burner shall be equipped with a control circuit transformer.

SPECIFICATIONS

PRECISIONBOILERS

FTS, FLEXTUBE GAS/OIL FIRED STEAM BOILERS

Represented in your area by:

Precision Boilers 5727 Superior Drive Morristown, TN 37814 PHONE: (423) 587-9390 FAX: (423) 581-7749 E-mail: sales@precisionboilers.com WEB: www.precisionboilers.com

PRECISIONBOILERS

• Electric Hot Water and Steam Boilers 10KW - 5000KW to 3000 PSI; Carbon Steel & Stainless Steel• Electrode High Voltage Boilers• Electric Storage Water Heaters 125 - 5500 Gallons• Thermal Storage Systems Space Heating & Domestic or Process Water; Electric, Gas or Steam Fired

• Pressure Vessels Water Storage Tanks Flash Tanks Blowdown Tanks• Tanks with Tube Bundle(s)• Unfired Hot Water and Steam Generators• Gas or Oil-Fired Vertical Firetube Boilers and Water Heaters

• Boiler Feedwater Systems• Steam Superheaters-Electric• Circulation Heaters-Electric• Chemical Bypass Feeders• Deaerators Spray Tray• Surge Tanks• Flextube Hot Water and Steam Boilers

NOTE: In pursuing our policy of continuous development of products, PRECISION reserves the right to vary any detail in this bulletin without notice.

CONTACT US FOR THESE QUALITY PRODUCTS

PRECISIONBOILERS

FTS, FLEXTUBE GAS/OIL FIRED STEAM BOILERS